1286562640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{16427}}^1$

素因数の和:16540

約数の個数: 80

約数和(自身を含む): 3300056640

約数和(自身を除く): 2013494000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 440, 445, 712, 880, 890, 979, 1424, 1780, 1958, 3560, 3916, 4895, 7120, 7832, 9790, 15664, 16427, 19580, 32854, 39160, 65708, 78320, 82135, 131416, 164270, 180697, 262832, 328540, 361394, 657080, 722788, 903485, 1314160, 1445576, 1462003, 1806970, 2891152, 2924006, 3613940, 5848012, 7227880, 7310015, 11696024, 14455760, 14620030, 16082033, 23392048, 29240060, 32164066, 58480120, 64328132, 80410165, 116960240, 128656264, 160820330, 257312528, 321640660, 643281320, 1286562640]

約数ペア:

[(1, 1286562640), (2, 643281320), (4, 321640660), (5, 257312528), (8, 160820330), (10, 128656264), (11, 116960240), (16, 80410165), (20, 64328132), (22, 58480120), (40, 32164066), (44, 29240060), (55, 23392048), (80, 16082033), (88, 14620030), (89, 14455760), (110, 11696024), (176, 7310015), (178, 7227880), (220, 5848012), (356, 3613940), (440, 2924006), (445, 2891152), (712, 1806970), (880, 1462003), (890, 1445576), (979, 1314160), (1424, 903485), (1780, 722788), (1958, 657080), (3560, 361394), (3916, 328540), (4895, 262832), (7120, 180697), (7832, 164270), (9790, 131416), (15664, 82135), (16427, 78320), (19580, 65708), (32854, 39160)]